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Figure 4: Generalized equivalent uniform doses of critical structures using parameter “a” = +7, for intensity-modulated radiation therapy and volumetric-modulated arc therapy treatment plans. The average generalized equivalent uniform dose in Gy for intensity-modulated radiation therapy versus volumetric-modulated arc therapy for the hippocampus, optic chiasm, right optic nerve, and left optic nerve were, respectively, (12.83 vs. 12.51), (27.64 vs. 28.38), (22.89 vs. 24.98), and (22.52 vs. 24.59)

Figure 4: Generalized equivalent uniform doses of critical structures using parameter “a” = +7, for intensity-modulated radiation therapy and volumetric-modulated arc therapy treatment plans. The average generalized equivalent uniform dose in Gy for intensity-modulated radiation therapy versus volumetric-modulated arc therapy for the hippocampus, optic chiasm, right optic nerve, and left optic nerve were, respectively, (12.83 vs. 12.51), (27.64 vs. 28.38), (22.89 vs. 24.98), and (22.52 vs. 24.59)